Hello everyone, new boost user here. :) I'm attempting to use the regular expression library with ICU support and I'm running into a coredump inside of boost. The following test program is dumping core depending on the regular expression. Replacing the " " with a ".*" results in a crash. Can anyone provide a hint about why? Any tips that anyone could offer would be appreciated. I've pasted both the test and the backtrace below, because I don't know what the list rules are for attachments. Thank you in advance, Jason Pollock =========================================================================== #include <boost/regex.hpp> #include <boost/regex/icu.hpp> #include <iostream> #include <string> /* test$ uname -a SunOS ab8 5.9 Generic_118558-34 sun4u sparc SUNW,Sun-Fire-V240 test$ gcc --version gcc (GCC) 3.2.3 Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Boost Version: 1.42.0 ICU Version: ICU 4c - 4.2.1 test$ ./boost_sample "^QUERY.*[0-9][0-9]*" test$ ./boost_sample "^QUERY [0-9][0-9]*" Bus Error (core dumped) */ int main(int argc, char **argv) { std::string line; int flags = boost::regex_constants::extended; try { UnicodeString uPattern = UnicodeString::fromUTF8(argv[1]); const boost::u32regex pat = boost::make_u32regex(uPattern, flags); } catch (std::exception &e) { std::cerr << "Exception raised: " << e.what() << std::endl; } return 0; } ============================================================================== #0 0x0005d5f0 in boost::re_detail::basic_regex_creator<int, boost::icu_regex_traits>::append_set () #1 0x00054adc in boost::re_detail::basic_regex_parser<int, boost::icu_regex_traits>::parse_set () #2 0x0004cb54 in boost::re_detail::basic_regex_parser<int, boost::icu_regex_traits>::parse_extended () #3 0x00049a00 in boost::re_detail::basic_regex_parser<int, boost::icu_regex_traits>::parse () #4 0x00046d74 in boost::basic_regex<int, boost::icu_regex_traits>::do_assign () #5 0x000446c0 in boost::basic_regex<int, boost::icu_regex_traits>::assign (this=0xffbff770, p1=0x10aa828, p2=0x10aa870, f=2163456) at include/boost/regex/v4/basic_regex.hpp:425 #6 0x0004465c in boost::basic_regex<int, boost::icu_regex_traits>::assign<int*> (this=0xffbff770, arg_first=0xffbff558, arg_last=0x10aa828, f=2163456) at include/boost/regex/v4/basic_regex.hpp:477 #7 0x00044424 in boost::basic_regex<int, boost::icu_regex_traits>::basic_regex<boost::u16_to_u32_iterator<unsigned short const*, int> > (this=0xffbff770, arg_first= {<iterator_facade<boost::u16_to_u32_iterator<const short unsigned int*, int>,int,std::bidirectional_iterator_tag,const int,int>> = {<No data fields>}, static pending_read = <optimized out>, m_position = 0x5e, m_value = 81}, arg_last= {<iterator_facade<boost::u16_to_u32_iterator<const short unsigned int*, int>,int,std::bidirectional_iterator_tag,const int,int>> = {<No data fields>}, static pending_read = <optimized out>, m_position = 0x10aa7d0, m_value = -1}, f=2163456) at include/boost/regex/v4/basic_regex.hpp:447 #8 0x000442d0 in boost::re_detail::do_make_u32regex<unsigned short const*> (i=0x10aa7e0, j=0x10aa7d0, opt=2163456) at include/boost/regex/icu.hpp:260 #9 0x00044214 in boost::make_u32regex (s=@0xffbff778, opt=2163456) at include/boost/regex/icu.hpp:381 #10 0x00044014 in main (argc=-4196488, argv=0xffbff81c) at boost_sample.cc:33